A diffraction grating with 600 slits/mm is illuminated with…

A diffraction grating with 600 slits/mm is illuminated with light of wavelength 500 nm. A very wide viewing screen is [L] m behind the grating. What is the distance between the two m=1 fringes? Express your answer in meters. Note that there are two m=1 bright fringes, one on either side of the central maximum.

A double-slit experiment is performed with light of waveleng…

A double-slit experiment is performed with light of wavelength 600 nm. The bright interference fringes are spaced [dy] mm apart on the viewing screen. What will the fringe spacing be if the light is changed to a wavelength of [lamda] nm? Express your answer in mm.

In a double‑slit interference experiment, the wavelength is …

In a double‑slit interference experiment, the wavelength is λ=700 nm, the slit separation is [d] mm, and the screen is [L] m away from the slits. What is the linear distance between the ninth order maximum and the third order maximum on the screen? Express your answer in mm.